Cuba state media: Fidel Castro's son has killed himself

HAVANA (AP) - The oldest son of late Cuban leader Fidel Castro killed himself on Thursday after months of treatment for depression, state media reported. He was 68.

Official website Cubadebate said Fidel Castro Diaz-Balart had been in a "deeply depressed state." A brief note read on state television said his treatment had "required an initial hospitalization then outpatient follow-up."

The oldest son of Cuba's late revolutionary leader was known for his resemblance to his father, earning him the nickname Fidelito or Little Fidel.

FILE - In this March 14, 2012 file photo, Fidel Castro Diaz-Balart, son of then Cuban leader Fidel Castro, speaks with an unidentified woman during the presentation of his father's book "Nuestro Deber es Luchar," or "Our Duty is to Fight," in Havana, Cuba. According to Cuban state media on Feb. 1, 2018, Diaz-Balart has killed himself. (AP Photo/Franklin Reyes, File)

Castro Diaz-Balart studied nuclear physics in the former Soviet Union and served as scientific adviser to Cuba's Council of State. He was vice president of the Cuban Academy of Sciences. He previously led its nuclear program.

Castro Diaz-Balart was born to Fidel Castro's first wife, Mirta Diaz-Balart, a woman from Cuba's aristocracy who Fidel married in his youth before beginning the revolutionary struggle that later brought him and his brother Raul to power.

Because of his maternal lineage, Castro Diaz-Balart is cousin to Republican Congressman Mario Diaz-Balart, who represents Cuban exiles in Florida.

Fidel Castro, the father, died in November 2016 at age 90.

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Andrea Rodríguez is on Twitter at https://twitter.com/ARodriguezAP

FILE - In this Feb. 9, 2007 file photo, Fidel Castro Diaz-Balart, the oldest son of Cuba's President Fidel Castro, addresses the International Economists Conference on Globalization and Development Problems in Havana, Cuba. According to Cuban state media on Feb. 1, 2018, Diaz-Balart has killed himself. (AP Photo/Javier Galeano, File)